Eval skeleton.

This commit is contained in:
Christian Gunderman
2026-04-08 18:07:46 -07:00
parent 642c244739
commit f4cd486f90
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/**
* @license
* Copyright 2026 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, expect } from 'vitest';
import { componentEvalTest } from './component-test-helper.js';
import { SimulationHarness } from '../packages/core/src/context/system-tests/SimulationHarness.js';
import type { SidecarConfig } from '../packages/core/src/context/sidecar/types.js';
import { Config, LlmRole, getResponseText } from '@google/gemini-cli-core';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import type { Content } from '@google/genai';
import { EVAL_MODEL } from './test-helper.js';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const DATA_DIR = path.join(__dirname, 'data', 'context_manager');
interface ScenarioQuestion {
id: string;
prompt: string;
expectedSubstring: string;
}
interface Scenario {
scenarioId: string;
description: string;
history: Content[];
questions: ScenarioQuestion[];
}
const getScenario = (id: string): Scenario => {
const filePath = path.join(DATA_DIR, 'scenario-c-compiler.json');
if (!fs.existsSync(filePath)) {
throw new Error(
`Scenario file not found at ${filePath}. Run generate-c-compiler-scenario.ts first.`,
);
}
const content = fs.readFileSync(filePath, 'utf-8');
return JSON.parse(content) as Scenario;
};
/**
* Runs a single evaluation iteration using the SimulationHarness.
*/
async function runContextManagerEval(
config: Config,
sidecarConfig: SidecarConfig,
seed: number,
scenario: Scenario,
): Promise<{
pass: boolean;
response: string;
question: ScenarioQuestion;
tokens: number;
}> {
const harness = await SimulationHarness.create(
sidecarConfig,
config.getBaseLlmClient(),
);
// 1. Feed trajectory
for (const message of scenario.history) {
await harness.simulateTurn([message]);
}
// Ensure background tasks (like StateSnapshotProcessor) have finished
await harness.waitForIdle();
// 2. Pick a question based on seed
const questionIndex = seed % scenario.questions.length;
const question = scenario.questions[questionIndex];
// 3. Project compressed history
const compressedHistory =
await harness.contextManager.projectCompressedHistory();
console.log('--- COMPRESSED HISTORY ---');
console.log(JSON.stringify(compressedHistory, null, 2));
console.log('--- END COMPRESSED HISTORY ---');
// 4. Ask the question
const evalPrompt: Content = {
role: 'user',
parts: [
{
text: `[SYSTEM: EVALUATION MODE - ANSWER AS TEXT ONLY - DO NOT USE TOOLS]\n\n${question.prompt}\n\nIMPORTANT: Answer in plain text and DO NOT call any tools. Provide the specific information requested.`,
},
],
};
const response = await config.getContentGenerator().generateContent(
{
model: config.getModel(),
config: {},
contents: [...compressedHistory, evalPrompt],
},
'eval-prompt',
LlmRole.UTILITY_TOOL,
);
const responseText = getResponseText(response) ?? '';
const pass = responseText
.toLowerCase()
.includes(question.expectedSubstring.toLowerCase());
const finalTokens = harness.env.tokenCalculator.calculateEpisodeListTokens(
harness.contextManager.getWorkingBufferView(),
);
console.log(`Retained Budget: ${sidecarConfig.budget.retainedTokens}`);
console.log(`Final Tokens: ${finalTokens}`);
return { pass, response: responseText, question, tokens: finalTokens };
}
function generateRandomSidecarConfig(seed: number): SidecarConfig {
// Simple LCG or similar for deterministic randomness from seed if needed,
// but for a fuzzer we can just use Math.random and log the seed.
const retained = 500 + Math.floor(Math.random() * 9500); // 500 to 10000
const max = Math.floor(retained * (1.2 + Math.random() * 0.8)); // 20% to 100% buffer
const strategies: Array<'truncate' | 'compress' | 'rollingSummarizer'> = [
'truncate',
'compress',
'rollingSummarizer',
];
const strategy = strategies[Math.floor(Math.random() * strategies.length)];
const useSquashing = Math.random() > 0.5;
const useSnapshot = Math.random() > 0.5;
const processors: any[] = [
{
processorId: 'ToolMaskingProcessor',
options: {
stringLengthThresholdTokens: 2000 + Math.floor(Math.random() * 8000),
},
},
{ processorId: 'BlobDegradationProcessor', options: {} },
{
processorId: 'SemanticCompressionProcessor',
options: { nodeThresholdTokens: 1000 + Math.floor(Math.random() * 4000) },
},
{ processorId: 'EmergencyTruncationProcessor', options: {} },
];
const backgroundProcessors: any[] = [];
if (useSquashing) {
backgroundProcessors.push({
processorId: 'HistorySquashingProcessor',
options: { maxTokensPerNode: 500 + Math.floor(Math.random() * 2500) },
});
}
if (useSnapshot) {
backgroundProcessors.push({
processorId: 'StateSnapshotProcessor',
options: {},
});
}
return {
budget: { retainedTokens: retained, maxTokens: max },
gcBackstop: {
strategy,
target: 'incremental',
freeTokensTarget: Math.floor(retained * 0.1),
},
pipelines: [
{
name: 'Immediate Sanitization',
triggers: ['on_turn'],
execution: 'blocking',
processors,
},
{
name: 'Deep Background Compression',
triggers: [{ type: 'timer', intervalMs: 100 }, 'budget_exceeded'],
execution: 'background',
processors: backgroundProcessors,
},
],
};
}
describe('ContextManager Evaluation Suite', () => {
const scenario = getScenario('scenario-c-compiler');
/**
* The "Explorer" test.
* Set RUN_EXPLORER=1 to run many iterations and find failures.
*/
if (process.env.RUN_EXPLORER) {
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager explorer (fuzzer)',
configOverrides: { model: EVAL_MODEL },
timeout: 1200000, // 20 minutes
assert: async (config: Config) => {
console.log('Starting ContextManager explorer loop...');
for (let i = 0; i < 50; i++) {
const seed = Math.floor(Math.random() * 1000000);
const sidecarConfig = generateRandomSidecarConfig(seed);
const result = await runContextManagerEval(
config,
sidecarConfig,
seed,
scenario,
);
if (!result.pass) {
console.log('!!! FAILURE FOUND !!!');
console.log(`Seed: ${seed}`);
console.log(`Question: ${result.question.id}`);
console.log(`Expected: ${result.question.expectedSubstring}`);
console.log(`Actual Response: ${result.response}`);
console.log('---------------------------');
console.log(`NEW FROZEN CASE SUGGESTION:`);
console.log(`
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager Frozen Case - ${result.question.id} (Budget: ${sidecarConfig.budget.retainedTokens})',
configOverrides: { model: EVAL_MODEL },
assert: async (config: Config) => {
const scenario = getScenario('scenario-c-compiler');
const sidecarConfig: SidecarConfig = ${JSON.stringify(sidecarConfig, null, 2)};
const seed = ${seed};
const result = await runContextManagerEval(config, sidecarConfig, seed, scenario);
expect(result.pass, \`Recall failed for ${result.question.id}. Response: \${result.response}\`).toBe(true);
}
});
`);
} else {
console.log(
`Iteration ${i} (Budget: ${sidecarConfig.budget.retainedTokens}, Seed: ${seed}) passed.`,
);
}
}
},
});
}
// --- Frozen cases discovered by explorer ---
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager Baseline - Generous Budget (Full Recall)',
configOverrides: { model: EVAL_MODEL },
assert: async (config: Config) => {
const budget = { retained: 100000, max: 200000 };
const sidecarConfig: SidecarConfig = {
budget: { retainedTokens: budget.retained, maxTokens: budget.max },
gcBackstop: { strategy: 'truncate', target: 'incremental' },
pipelines: [],
};
const seed = 42;
const result = await runContextManagerEval(
config,
sidecarConfig,
seed,
scenario,
);
expect(
result.pass,
`Baseline recall failed for ${result.question.id}. Response: ${result.response}`,
).toBe(true);
},
});
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager - Recall spatial lexer path (Limited Budget)',
configOverrides: { model: EVAL_MODEL },
assert: async (config: Config) => {
const sidecarConfig: SidecarConfig = {
budget: { retainedTokens: 5000, maxTokens: 8000 },
gcBackstop: {
strategy: 'truncate',
target: 'incremental',
freeTokensTarget: 500,
},
pipelines: [
{
name: 'Immediate Sanitization',
triggers: ['on_turn'],
execution: 'blocking',
processors: [
{
processorId: 'ToolMaskingProcessor',
options: { stringLengthThresholdTokens: 8000 },
},
{ processorId: 'BlobDegradationProcessor', options: {} },
{
processorId: 'SemanticCompressionProcessor',
options: { nodeThresholdTokens: 5000 },
},
{ processorId: 'EmergencyTruncationProcessor', options: {} },
],
},
],
};
const seed = 12; // Deterministically pick spatial-lexer-path question
const result = await runContextManagerEval(
config,
sidecarConfig,
seed,
scenario,
);
expect(
result.pass,
`Recall failed for spatial path. Response: ${result.response}`,
).toBe(true);
},
});
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager Frozen Case - secret-beta (Budget: 2564)',
configOverrides: { model: EVAL_MODEL },
assert: async (config: Config) => {
const scenario = getScenario('scenario-c-compiler');
const sidecarConfig: SidecarConfig = {
budget: {
retainedTokens: 2564,
maxTokens: 3855,
},
gcBackstop: {
strategy: 'rollingSummarizer',
target: 'incremental',
freeTokensTarget: 256,
},
pipelines: [
{
name: 'Immediate Sanitization',
triggers: ['on_turn'],
execution: 'blocking',
processors: [
{
processorId: 'ToolMaskingProcessor',
options: {
stringLengthThresholdTokens: 3379,
},
},
{
processorId: 'BlobDegradationProcessor',
options: {},
},
{
processorId: 'SemanticCompressionProcessor',
options: {
nodeThresholdTokens: 2456,
},
},
{
processorId: 'EmergencyTruncationProcessor',
options: {},
},
],
},
{
name: 'Deep Background Compression',
triggers: [
{
type: 'timer',
intervalMs: 100,
},
'budget_exceeded',
],
execution: 'background',
processors: [
{
processorId: 'HistorySquashingProcessor',
options: {
maxTokensPerNode: 2588,
},
},
{
processorId: 'StateSnapshotProcessor',
options: {},
},
],
},
],
};
const seed = 248506;
const result = await runContextManagerEval(
config,
sidecarConfig,
seed,
scenario,
);
expect(
result.pass,
`Recall failed for secret-beta. Response: ${result.response}`,
).toBe(true);
},
});
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager Frozen Case - codegen-header (Budget: 1820)',
configOverrides: { model: EVAL_MODEL },
assert: async (config: Config) => {
const scenario = getScenario('scenario-c-compiler');
const sidecarConfig: SidecarConfig = {
budget: {
retainedTokens: 1820,
maxTokens: 3353,
},
gcBackstop: {
strategy: 'rollingSummarizer',
target: 'incremental',
freeTokensTarget: 182,
},
pipelines: [
{
name: 'Immediate Sanitization',
triggers: ['on_turn'],
execution: 'blocking',
processors: [
{
processorId: 'ToolMaskingProcessor',
options: {
stringLengthThresholdTokens: 5375,
},
},
{
processorId: 'BlobDegradationProcessor',
options: {},
},
{
processorId: 'SemanticCompressionProcessor',
options: {
nodeThresholdTokens: 3886,
},
},
{
processorId: 'EmergencyTruncationProcessor',
options: {},
},
],
},
{
name: 'Deep Background Compression',
triggers: [
{
type: 'timer',
intervalMs: 100,
},
'budget_exceeded',
],
execution: 'background',
processors: [
{
processorId: 'HistorySquashingProcessor',
options: {
maxTokensPerNode: 1999,
},
},
{
processorId: 'StateSnapshotProcessor',
options: {},
},
],
},
],
};
const seed = 322027;
const result = await runContextManagerEval(
config,
sidecarConfig,
seed,
scenario,
);
expect(
result.pass,
`Recall failed for codegen-header. Response: ${result.response}`,
).toBe(true);
},
});
componentEvalTest('ALWAYS_PASSES', {
suiteName: 'context-manager',
suiteType: 'component-level',
name: 'ContextManager Frozen Case - lexer-constraint (Budget: 9097)',
configOverrides: { model: EVAL_MODEL },
assert: async (config: Config) => {
const scenario = getScenario('scenario-c-compiler');
const sidecarConfig: SidecarConfig = {
budget: {
retainedTokens: 9097,
maxTokens: 16089,
},
gcBackstop: {
strategy: 'compress',
target: 'incremental',
freeTokensTarget: 909,
},
pipelines: [
{
name: 'Immediate Sanitization',
triggers: ['on_turn'],
execution: 'blocking',
processors: [
{
processorId: 'ToolMaskingProcessor',
options: {
stringLengthThresholdTokens: 8799,
},
},
{
processorId: 'BlobDegradationProcessor',
options: {},
},
{
processorId: 'SemanticCompressionProcessor',
options: {
nodeThresholdTokens: 4044,
},
},
{
processorId: 'EmergencyTruncationProcessor',
options: {},
},
],
},
{
name: 'Deep Background Compression',
triggers: [
{
type: 'timer',
intervalMs: 100,
},
'budget_exceeded',
],
execution: 'background',
processors: [
{
processorId: 'HistorySquashingProcessor',
options: {
maxTokensPerNode: 1973,
},
},
{
processorId: 'StateSnapshotProcessor',
options: {},
},
],
},
],
};
const seed = 161221;
const result = await runContextManagerEval(
config,
sidecarConfig,
seed,
scenario,
);
expect(
result.pass,
`Recall failed for lexer-constraint. Response: ${result.response}`,
).toBe(true);
},
});
});
@@ -0,0 +1,928 @@
{
"scenarioId": "scenario-c-compiler",
"description": "A robust 100-turn trajectory building a C compiler, featuring realistic noise, synchronized tool state, high-entropy data, and superseded architectural decisions.",
"history": [
{
"role": "user",
"parts": [
{
"text": "How is the test coverage looking lately?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "We're making good progress. We now have 12 unit tests passing across all modules."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's call this project 'TitanC'. I think it has a strong, industrial feel."
}
]
},
{
"role": "model",
"parts": [
{
"text": "'TitanC' sounds excellent. I've initialized the project workspace under that name."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Initially, I'd like to target x86-64 assembly for our compiler backend."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Got it. We will focus on generating x86-64 assembly instructions."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's run a full build of TitanC and see if there are any issues."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Executing build for TitanC (Target: x86-64)...\n```\n[CC] src/main.ts -> build/main.o\n[CC] src/lexer.ts -> build/lexer.o\n[CC] src/parser.ts -> build/parser.o\n[CC] src/ast.ts -> build/ast.o\n[CC] src/codegen.ts -> build/codegen.o\n[CC] src/utils.ts -> build/utils.o\n[LD] build/compiler\nBuild successful.\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "I was thinking about the refactoring the visitor pattern for better readability. What's your take?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "That's a valid concern. Given our current architecture in TitanC, we could definitely improve that area. I recommend we prioritize correctness first, then profile to see if it's a bottleneck."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Wait, we just got a new production deployment key: 'PROD_DEPLOY_KEY_XYZ'. This replaces all previous keys, so make sure to use this one from now on."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Updated. The current production deployment key is now PROD_DEPLOY_KEY_XYZ."
}
]
},
{
"role": "user",
"parts": [
{
"text": "How is the test coverage looking lately?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "We're making good progress. We now have 14 unit tests passing across all modules."
}
]
},
{
"role": "user",
"parts": [
{
"text": "The client actually needs ARM64 support for their new server farm, so let's pivot from x86-64. It's more energy-efficient and fits their requirements better."
}
]
},
{
"role": "model",
"parts": [
{
"text": "That's a significant change in direction. Switching the backend architecture to ARM64. I'll adjust the register allocation and instruction set templates accordingly."
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit jn759a\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n docs: add architectural overview\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit dmp72i\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n refactor: extract token scanner to separate module\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit g39v9p\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n fix: correctly handle escaped characters in strings\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "For the code generator, let's add a standard header to all generated assembly files. It should say exactly '; Generated by TitanC Compiler v0.1'."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Understood. I will prepend '; Generated by TitanC Compiler v0.1' to all output files generated by the backend."
}
]
},
{
"role": "user",
"parts": [
{
"text": "I'm reorganizing the project structure. Moving forward, the lexer logic should live in 'src/core/scanner/main.ts' and the parser in 'src/core/parser/main.ts'."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Structure updated. I'll refer to 'src/core/scanner/main.ts' for lexer tasks and 'src/core/parser/main.ts' for parser logic."
}
]
},
{
"role": "user",
"parts": [
{
"text": "I have a strict requirement for the lexer: we must NOT use any third-party regex libraries. I want it to be a manual character-by-character scanner for maximum performance and to avoid heavy dependencies."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Understood. I'll ensure the lexer implementation avoids external regex libraries and uses manual scanning logic."
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit qdyivi\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n docs: add architectural overview\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "I was thinking about the performance of our hash map implementation. What's your take?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "That's a valid concern. Given our current architecture in TitanC, we could definitely improve that area. I recommend we prioritize correctness first, then profile to see if it's a bottleneck."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's define the core tokens for our lexer. We'll need an enum with at least INT, KEYWORD, IDENTIFIER, PLUS, MINUS, SEMICOLON, and EOF."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Understood. I've defined the TokenType enum as requested:\n```typescript\nenum TokenType {\n INT,\n KEYWORD,\n IDENTIFIER,\n PLUS,\n MINUS,\n SEMICOLON,\n EOF\n}\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you define the interface for our AST nodes? Each node should have a 'type' property that can be 'Program', 'Function', 'Return', or 'Constant'."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Here is the AST node interface:\n```typescript\ninterface AstNode {\n type: 'Program' | 'Function' | 'Return' | 'Constant';\n value?: any;\n children?: AstNode[];\n}\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit jgqwe\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n docs: add architectural overview\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's run a full build of TitanC and see if there are any issues."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Executing build for TitanC (Target: ARM64)...\n```\n[CC] src/main.ts -> build/main.o\n[CC] src/core/scanner/main.ts -> build/core_scanner_main.o\n[CC] src/core/parser/main.ts -> build/core_parser_main.o\n[CC] src/ast.ts -> build/ast.o\nsrc/ast.ts:60:8: warning: unused variable 'temp' [-Wunused-variable]\n[CC] src/codegen.ts -> build/codegen.o\n[CC] src/utils.ts -> build/utils.o\n[LD] build/compiler\nBuild successful.\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's run a full build of TitanC and see if there are any issues."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Executing build for TitanC (Target: ARM64)...\n```\n[CC] src/main.ts -> build/main.o\n[CC] src/core/scanner/main.ts -> build/core_scanner_main.o\nsrc/core/scanner/main.ts:97:8: warning: unused variable 'temp' [-Wunused-variable]\n[CC] src/core/parser/main.ts -> build/core_parser_main.o\n[CC] src/ast.ts -> build/ast.o\nsrc/ast.ts:22:8: warning: unused variable 'temp' [-Wunused-variable]\n[CC] src/codegen.ts -> build/codegen.o\n[CC] src/utils.ts -> build/utils.o\n[LD] build/compiler\nBuild successful.\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "I just found out there's another project called 'TitanC'. To avoid any legal issues, let's rename our compiler to 'GigaC'. We should update all references immediately."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Understood. Safety first. Renaming project from 'TitanC' to 'GigaC'. I'll update all our internal strings and build scripts."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's run a full build of GigaC and see if there are any issues."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Executing build for GigaC (Target: ARM64)...\n```\n[CC] src/main.ts -> build/main.o\n[CC] src/core/scanner/main.ts -> build/core_scanner_main.o\nsrc/core/scanner/main.ts:42:8: warning: unused variable 'temp' [-Wunused-variable]\n[CC] src/core/parser/main.ts -> build/core_parser_main.o\n[CC] src/ast.ts -> build/ast.o\n[CC] src/codegen.ts -> build/codegen.o\n[CC] src/utils.ts -> build/utils.o\n[LD] build/compiler\nBuild successful.\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "How is the test coverage looking lately?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "We're making good progress. We now have 15 unit tests passing across all modules."
}
]
},
{
"role": "user",
"parts": [
{
"text": "For our integration tests, we'll need to use the staging environment. The access code is 'STAGING_READY_2026'. Please keep this secure."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Acknowledged. I've noted the staging environment access code as STAGING_READY_2026 and will treat it as sensitive information."
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit 8s45s\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n fix: correctly handle escaped characters in strings\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "How is the test coverage looking lately?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "We're making good progress. We now have 16 unit tests passing across all modules."
}
]
},
{
"role": "user",
"parts": [
{
"text": "How is the test coverage looking lately?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "We're making good progress. We now have 17 unit tests passing across all modules."
}
]
},
{
"role": "user",
"parts": [
{
"text": "I've discovered a critical bug in the lexer. It seems to fail when block comments (/* ... */) span across multiple lines. Let's track this as Bug #404."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Got it. Tracking Bug #404: Lexer fails to handle multi-line block comments. I'll keep this in mind as we refine the scanner."
}
]
},
{
"role": "user",
"parts": [
{
"text": "I was thinking about the optimizing the constant folding pass. What's your take?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "That's a valid concern. Given our current architecture in GigaC, we could definitely improve that area. I recommend we prioritize correctness first, then profile to see if it's a bottleneck."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Let's run a full build of GigaC and see if there are any issues."
}
]
},
{
"role": "model",
"parts": [
{
"text": "Executing build for GigaC (Target: ARM64)...\n```\n[CC] src/main.ts -> build/main.o\n[CC] src/core/scanner/main.ts -> build/core_scanner_main.o\n[CC] src/core/parser/main.ts -> build/core_parser_main.o\n[CC] src/ast.ts -> build/ast.o\n[CC] src/codegen.ts -> build/codegen.o\nsrc/codegen.ts:82:8: warning: unused variable 'temp' [-Wunused-variable]\n[CC] src/utils.ts -> build/utils.o\n[LD] build/compiler\nBuild successful.\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit 5tclu\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n test: add edge cases for floating point literals\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "I was thinking about the switching to a data-oriented design for the AST. What's your take?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "That's a valid concern. Given our current architecture in GigaC, we could definitely improve that area. I recommend we prioritize correctness first, then profile to see if it's a bottleneck."
}
]
},
{
"role": "user",
"parts": [
{
"text": "Can you list the files in the src directory? I want to make sure I haven't missed anything."
}
]
},
{
"role": "model",
"parts": [
{
"functionCall": {
"name": "ls",
"args": {
"path": "src/"
}
}
}
]
},
{
"role": "user",
"parts": [
{
"functionResponse": {
"name": "ls",
"response": {
"output": "src/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
}
}
]
},
{
"role": "model",
"parts": [
{
"text": "Sure, here are the files in src/:\nsrc/main.ts\nsrc/core/scanner/main.ts\nsrc/core/parser/main.ts\nsrc/ast.ts\nsrc/codegen.ts\nsrc/utils.ts"
}
]
},
{
"role": "user",
"parts": [
{
"text": "What was the most recent change committed to the repo?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "The latest commit is:\n```\ncommit 0z2ta5\nAuthor: Christian <gundermanc@google.com>\nDate: Mon Feb 2 14:00:00 2026 -0800\n\n perf: optimize lexer lookup table\n```"
}
]
},
{
"role": "user",
"parts": [
{
"text": "I was thinking about the handling variadic functions in the calling convention. What's your take?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "That's a valid concern. Given our current architecture in GigaC, we could definitely improve that area. I recommend we prioritize correctness first, then profile to see if it's a bottleneck."
}
]
},
{
"role": "user",
"parts": [
{
"text": "How is the test coverage looking lately?"
}
]
},
{
"role": "model",
"parts": [
{
"text": "We're making good progress. We now have 19 unit tests passing across all modules."
}
]
}
],
"questions": [
{
"id": "lexer-enum",
"prompt": "What are the first 3 enum values in the TokenType definition for the Lexer?",
"expectedSubstring": "INT, KEYWORD, IDENTIFIER"
},
{
"id": "lexer-constraint",
"prompt": "What is the primary constraint regarding regex libraries in the lexer?",
"expectedSubstring": "no third-party regex libraries"
},
{
"id": "spatial-lexer-path",
"prompt": "Where is the core lexer source file located?",
"expectedSubstring": "src/core/scanner/main.ts"
},
{
"id": "ast-interface",
"prompt": "What are the allowed 'type' values in the AstNode interface?",
"expectedSubstring": "Program' | 'Function' | 'Return' | 'Constant"
},
{
"id": "bug-1-description",
"prompt": "What was Bug #404 about?",
"expectedSubstring": "multi-line block comment"
},
{
"id": "secret-alpha",
"prompt": "What is the secret staging environment access code?",
"expectedSubstring": "STAGING_READY_2026"
},
{
"id": "secret-beta",
"prompt": "What is the production deployment key?",
"expectedSubstring": "PROD_DEPLOY_KEY_XYZ"
},
{
"id": "codegen-header",
"prompt": "What exact comment line should the code generator emit at the start of every file?",
"expectedSubstring": "; Generated by GigaC Compiler v0.1"
},
{
"id": "current-arch",
"prompt": "What is the final target architecture we decided on?",
"expectedSubstring": "ARM64"
},
{
"id": "final-name",
"prompt": "What is the final name of our project after the rename?",
"expectedSubstring": "GigaC"
}
]
}